Home / 3,974.83-5,485.62-2,402.89

Finding the Fourth Proportional to 3,974.83, 5,485.62 and 2,402.89

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Solution

The fourth proportional to 3,974.83, 5,485.62 and 2,402.89 is: 3,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.83 : 5,485.62 = 2,402.89 : x
  2. Step 2: Convert to fraction form
    3,974.83/5,485.62 = 2,402.89/x
  3. Step 3: Cross multiply
    3,974.83x = 5,485.62 × 2,402.89
  4. Step 4: Simplify right side
    3,974.83x = 13,181,341.44
  5. Step 5: Solve for x
    x = 13,181,341.44/3,974.83
  6. Step 6: Final answer
    x = 3,316.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.